Support Options
So far many of the support issues that have come my way have been related to the Marketplace and Licensing... Issues regarding transferring licenses, licenses not being recognized, getting the Marketplace licenses, problems with the Marketplace in general...
Unfortunately I have little if anything to help with for these areas.
That said, Liferay has a contact form for all of your Marketplace support issues: https://www.liferay.com/web/developer/marketplace/contact
For actual Vaadin 7 Control Panel issues, feel free to email This email address is being protected from spambots. You need JavaScript enabled to view it. and I'll respond as soon as possible.